This week's episode is sponsored by Holiday House, publishers of Music for Mister Moon, a notable new picture book from Philip C. Stead and Erin E. Stead, the author and illustrator of 2011 Caldecott Medal Book A Sick Day for Amos McGee. Make sure to stay tuned for our intriguing interview with Erin E. Stead later in the podcast. In our lead interview, Margaret Leslie Davis joins Clay and Megan to discuss the most important book in the history of printing, the Gutenberg Bible. Her exciting new nonfiction, The Lost Gutenberg: The Astounding Story of One Book's Five-Hundred-Year Odyssey, chronicles one exceptional copy's various owners, including the boldest female book collector in American history. Then our editors join with their top picks in books this week.